netdev - [net-next 02/10] igb: Fix queue selection on MAC filters on i210

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Date:   Wed, 25 Apr 2018 11:22:24 -0700
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        jogreene@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 02/10] igb: Fix queue selection on MAC filters on i210

From: Vinicius Costa Gomes <vinicius.gomes@...el.com>

On the RAH registers there are semantic differences on the meaning of
the "queue" parameter for traffic steering depending on the controller
model: there is the 82575 meaning, which "queue" means a RX Hardware
Queue, and the i350 meaning, where it is a reception pool.

The previous behaviour was having no effect for i210 based controllers
because the QSEL bit of the RAH register wasn't being set.

This patch separates the condition in discrete cases, so the different
handling is clearer.

Fixes: 83c21335c876 ("igb: improve MAC filter handling")
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index cce7ada89255..9afee130c2aa 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -8763,12 +8763,17 @@ static void igb_rar_set_index(struct igb_adapter *adapter, u32 index)
 		if (is_valid_ether_addr(addr))
 			rar_high |= E1000_RAH_AV;
 
-		if (hw->mac.type == e1000_82575)
+		switch (hw->mac.type) {
+		case e1000_82575:
+		case e1000_i210:
 			rar_high |= E1000_RAH_POOL_1 *
 				    adapter->mac_table[index].queue;
-		else
+			break;
+		default:
 			rar_high |= E1000_RAH_POOL_1 <<
 				    adapter->mac_table[index].queue;
+			break;
+		}
 	}
 
 	wr32(E1000_RAL(index), rar_low);
-- 
2.14.3